Closure.



e. M. KELLER.

CLOSURE.

APPLICATION FILED NOV. II. 1916.

1,276,077; I Patented ug. 20, 1918.

UNITE STATES PATENT OFFICE.

GEORGE M. KELLER, OF

BALTIMORE, MARYLAND, ASSIGNDR 'ro THE/GROWN CORK AND SEAL COMPANY or BALTIMORE cI'rY.

CLOSURE.

To all whom it may concern;

Be it known that I, GEoRGEM. KELLER, a

. citizen of the United States, residing at Baltimore city and State of Maryland, have 1 ed shell or cap and a sealing disk of cork-'- or other suitable material. Since the crowns are subjected to more or less handling between manufacture and capping, it is necessary to provide means for holding the sealing disk in place, and for various reasons it is desirable that this retaining means should be positive and sure. For ex ample, in themethod ordinarily employed in feeding crowns to a capping headfa mass of crowns is'dnmped into a hopper in which the crowns are agitated by suitable devices in order that they may be selectedby. the selecting apparatus. It has been found that sealing disks are oftentimes shaken out of their shells by this more or less violent treatment, and as a result, when such incomplete closure reaches the capping head, either a bottle is broken or an imperfect seal is made.

It is the ob'j ect of the present invention to provide a closure for bottles in which the sealing disk is firmly and effectively held in place and, further, a closure such that the retention of the disk is attained in a simple and economicalmanner.

The following specification describes, and the accompanying drawing illustrates abot- -tleclosure constructed in accordance with the invention, it being understood that changes may be made in the form, cons ruction and arrangement of the parts without departing from the invention, the form herein disclosed being a preferred embodiment thereof.

In the drawing Figure 1 is a vertical cross-sectional view of a bottle closure embodying the invention;

Fig. 2 is a plan view showing the bottonr of the closure; and

g- 3 s a Vi w similar to Fig. 1, showing the closure on a bottle after capping.

Referring o t e drawing, a closure of the Application filed November 11, 1916. Serial Na l-30,728.

Specification of Letters Patent. Patented Aug 20 1918 "crown cork type is illustrated, comprising a metal shell or cap 10, having a depending skirt 11 which is formed with vertical inner .corrugations 12 and outer corrugations 13.

Within the embrace of the skirt and up against thetop of the shell is placed a fiat sealing disk 14 of cork oriother suitable material. Means is provided for holding this sealing disk in place. "To this end, associated with shell 10 is a plurality of members for engaging the bottom face-0f the sealingdisk, and in structures embodying the invention to the best advantage, these members are provided by punching out a plurality of tongues from the metal of the cap, as, for example, from the skirt. Al-.

though capable of various constructions, in

the form shown the imier corrugations 12 of the skirt 11 are given a plurality (in this instance 3) of inverted V-shaped cuts and the metal thus punched out is forced in to form inwardly and upwardly extending free tongues 15. As appears in the drawing, the tips of these tongues engage the bottom face of the fiat sealing disk 14 These hearing points are a sufficient distance from the periphery of the disk to provide positive stops at a plurality of points, thus effectively preventing the sealing disk from dropping out of. the shell. In this manner the disk is retained in place as long as retention is necessary, that is, until the cap is secured to a bottle. In the capping operation, as a bottle-neck enters theshell, it forces the tongues 15.back into their original position in the plane ofthe skirt, as shown in Fig. 3. As a result of this construction, the diskretaining members do not interfere with the proper sealing of the bottle, and at the same time the crown does not have a multilated appearance after the bottle is capped.

It is noted that this method of holding the sealing disk in place is available with the ordinary style of crown, and it is not gaging the face of said sealing disk in a plurality of points, said tongues being replaceable in their original position by the bottle during the capping operation.

2. A closure for bottles and the like comprising a shell having associated therewith a skirt constructed to be bent drforced inwardly against a shoulder on the mouth of a bottle to lock it thereon, and a sealing disk under face of the disk and to be bent back 'when the skirt is in locking engagementwith the bottle.

In testimony whereof, I have hereunto set my hand.

GEO. M. KELLER. 

